Assessment of Restoration Effects in Riparian Wetlands using Satellite Imagery. Case Study on the Lower Danube River

Ioana-Toroimac, Gabriela; Zaharia, Liliana; Moroșanu, Gabriela Adina; Grécu, Florina; Hachemi, Kamel

doi:10.1007/s13157-022-01543-9

Cited by 4 publications

(4 citation statements)

References 57 publications

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“…Since the re‐inundation, the Comana Marsh has been living for more than a decade without maintenance works while other restoration strategies failed due to sedimentation (e.g. Ioana‐Toroimac et al 2022). According to the results from our case study, the classical technique to restore a wetland by creating low embankments proved once more its efficacy.…”

Section: Discussionmentioning

confidence: 99%

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Demonstrating the effectiveness of open‐water wetlandscape restoration: lessons learned from South‐Eastern Europe

Ioana‐Toroimac,

Neculau,

Stoica

et al. 2024

Restoration Ecology

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This paper evaluates the effectiveness of restoring open‐water area in a wetland via a geographical framework that goes from a general perspective to a detailed view. The methodology relies on diachronic cartography, remote sensing through Landsat satellite imagery validated by in situ hydrological data (2000–2022), and details from field work. We analyzed the water surface area of Comana freshwater marsh in Southern Romania. The water surface area recorded a statistical change point synchronous to the restoration actions. The water surface area increased due to restoration actions in 2011 and then became relatively stable. Post‐restoration, the mean monthly discharge of Neajlov River correlates statistically with the water surface area. The water has low depths in the marsh; yet, the area covered by vegetation appears to be stable. The persistence of the effects for over a decade recommends Comana Marsh as a demonstrative case study in South‐Eastern Europe and for further monitoring activities.

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Section: Discussionmentioning

confidence: 99%

“…Both the NDWI and NDVI were successfully used in previous studies on wetlands and change detection in recent publications by Ashok et al (2021) and Ioana‐Toroimac et al (2022).…”

Section: Methodsmentioning

confidence: 99%

Demonstrating the effectiveness of open‐water wetlandscape restoration: lessons learned from South‐Eastern Europe

Ioana‐Toroimac,

Neculau,

Stoica

et al. 2024

Restoration Ecology

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“…Wetlands located in the floodplains of a river are integral to their health as they provide essential habitat for aquatic biodiversity, and influence lateral and vertical (groundwater and base-flows) connectivity [1][2][3]. However, anthropogenic pressure on floodplains and wetlands have led to significant land use changes and encroachment in and around wetlands, pollution from agriculture runoff, sewage and industrial effluents, and lack of ownership to implement mitigation strategies.…”

Section: Introductionmentioning

confidence: 99%

“…Globally, there is a growing realisation of the importance of these wetlands for various ecosystem services, including water security for the local population and for maintaining the health of rivers and floodplains. While such anthropogenic stress on floodplain wetlands has been globally recognised [1], its assessment has been difficult [4] primarily because of the lack of process-based understanding of the wetlands and their relationship with the surrounding landscape.…”

Section: Introductionmentioning

confidence: 99%

Integrating Hydrological Connectivity in a Process–Response Framework for Restoration and Monitoring Prioritisation of Floodplain Wetlands in the Ramganga Basin, India

Singh

Sinha

2022

Water

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Floodplain wetlands are critical for sustaining various ecological and hydrological functions in a riverine environment. Severe anthropogenic alterations and human occupation of floodplains have threatened these wetlands in several parts of the world. A major handicap in designing sustainable restoration and monitoring strategies for these wetlands is the lack of scientific process-based understanding and information on the basin-scale controls of their degradation. Here, we offer a novel approach to integrate the connectivity of the wetlands with the surrounding landscape along with other attributes such as stream density, hydrometeorological parameters, and groundwater dynamics to explain their degradation and then to prioritise them for restoration and monitoring. We hypothesise that the best possible connectivity scenario for the existence of a wetland would be if (a) the wetland has a high connectivity with its upslope area, and (b) the wetland has a low connectivity with its downslope region. The first condition ensures the flow of water into the wetland and the second condition allows longer water residence time in the wetland. Accordingly, we define four connectivity-based wetland health scenarios—good, no impact, bad, and worst. We have implemented the proposed method in 3226 wetlands in the Ramganga Basin in north India. Further, we have applied specific selection criteria, such as distance from the nearest stream and stream density, to prioritise the wetlands for restoration and monitoring. We conclude that the connectivity analysis offers a quick process-based assessment of wetlands’ health status and serves as an important criterion to prioritise the wetlands for developing appropriate management strategies.

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Monitoring the dynamics of the Danube islands system, using SAR imagery (Orșova–Vedea sector, 1992–2022)

Hachemi,

Grecu,

Nougrara

et al. 2023

Environ Earth Sci

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Assessment of Restoration Effects in Riparian Wetlands using Satellite Imagery. Case Study on the Lower Danube River

Cited by 4 publications

References 57 publications

Demonstrating the effectiveness of open‐water wetlandscape restoration: lessons learned from South‐Eastern Europe

Demonstrating the effectiveness of open‐water wetlandscape restoration: lessons learned from South‐Eastern Europe

Integrating Hydrological Connectivity in a Process–Response Framework for Restoration and Monitoring Prioritisation of Floodplain Wetlands in the Ramganga Basin, India

Monitoring the dynamics of the Danube islands system, using SAR imagery (Orșova–Vedea sector, 1992–2022)

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